12 pts!

solve for x.

4/5 (2x + 5) - 4 = 1

Let's solve for f. fo r x (0.4) 5 (2x + 5) - 4 = 1 Step 1: Add 4 to both sides. 0.16f o r x2 + 25 fo r x - 4 + 4 = 1+4 0.16f o r x2 + 25 fo r x = 5 Step 2: Factor out variable f. f (0.8o r x2 + 2o r x 5) = 5 Step 3: Divide both sides by (0.8orx^2+2orx) / 5. f (0.8o r x2 + 2o r x 5) 0.8o r x2 + 2o r x 5 = 5 0.8o r x2 + 2o r x 5 f = 25 0.8o r x2 + 2o r x Answer: f = 25 0.8o r x2 + 2o r x

4/5 (2x + 5) - 4 = 1

4/5 (2x + 5) = 1 + 4

4/5 (2x + 5) = 5

2x + 5 = 5 / (4/5)

2x + 5 = 5 (5/4)

2x + 5 = 25/4

2x = 25/4 - 5

2x = 25/4 - 20/4

2x = 5/4

x = (5/4) / 2

x = (5/4) (1/2)

x = 5/8

x = 0.625